Pearl City, HI - The Hawaii Rising Stars ID (March 29) gave us an early look at some of the top emerging talent in the 2030 and 2031 classes, with over 90 prospects in attendance. A masssive thank you to the Pearl City staff for hosting us at their amazing facility.

With many players making their first appearance on a Prep Baseball stage, the event provided valuable insight into projectable frames, developing skill sets, and overall athleticism. Serving as an important early checkpoint, this event establishes a baseline for future evaluation as these young prospects continue to progress and refine their tools. Performances from this event will play a key role in identifying players to follow as they work toward earning spots at future invite-only events, including the Junior Future Games.

See below for the full Pitching leaderboards. Stay tuned for more post event content coming in the next coming days.

---

FASTBALL

MAX VELOCITY

Max Fastball Velocity: This metric calculates the speed of the pitch as it’s released from the pitcher’s hand.

HIGHEST AVG. SPIN RATE

Spin Rate: This metric calculates the rate of spin on the baseball as it leaves the pitcher’s hand, measured in revolutions per minute (rpm). Historical data shows that high-spin fastballs lessen the impact of gravity, allowing for more ‘rise’ (or less fall, in other words) as it carries through the zone. Low-spin fastballs typically indicate the pitch has greater horizontal action, often making it tougher to square up, but generally easier to make contact with, leading to more ground balls, while high-spin fastballs show a correlation with swings and misses.

HIGHEST AVG. IVB

Induced Vertical Break: Used in short form as "IVB," this metric is most important on fastballs for creating rise and on curveballs for creating depth – it can also have some use when measuring sliders and cutters as well. Sliders tend to be closer to zero inches while cutters are generally between 5 and 15 inches. Usually fastballs and curveballs with large IVB have higher spin efficiencies as well. Sliders generally have very little (closer to zero) IVB and very low spin efficiency. You could also categorize IVB into spin rate as this is part of the “useful movement” you’re looking for, and it’s also important to consider the pitch’s velocity as well as its release height when evaluating IVB measurements against each other.

HIGHEST AVG. HORIZONTAL MOVEMENT

Horizontal Break: Outlined on TrackMan’s own website: “... horizontal movement is measured in inches between where the pitch actually crosses the front of home plate side-wise, and where it would have crossed home plate side-wise if had it traveled in a perfectly straight line from release. A positive number means the break was to the right from the pitcher’s perspective, while a negative number means the break was to the left from the pitcher’s perspective.”

HIGHEST STRIKE ZONE RATE%

For some context, in 2023 MLB pitchers averaged an In Zone% of around 49 percent in live game settings measured across all pitch types, according to Statcast.

---

CURVEBALL

HIGHEST AVG. SPIN RATE

HIGHEST AVG. IVB

HIGHEST AVG. HORIZONTAL MOVEMENT

HIGHEST STRIKE ZONE RATE%

---

SLIDER

HIGHEST AVG. SPIN RATE

HIGHEST AVG. IVB

HIGHEST AVG. HORIZONTAL MOVEMENT

HIGHEST STRIKE ZONE RATE%

---

CHANGEUP

HIGHEST AVG. HORIZONTAL MOVEMENT

AVG. IVB

HIGHEST STRIKE ZONE RATE%